We use either MSN or Yahoo for the web cam stuff. It's Great! We have two lines in the house and so do my parents ....so alot of times we will hook up the cams and then call at the same time (only bkz the sound its that great on the web service)....ALMOST like being back, hehe.
And also like Sara, we use instant messenger services (IMS). Kids like that, its very easy.
Then of course we make LOTS of phone calls....thanks goodness for Alpha Telecom.
Then I'm forever posting pics on Clubphoto (it's a US site so they can even order copies of the pics they want).
I wish I could get them to send emails...but its like a dreaded chore. You know, they gotta think and then type, LOL.
Hope this helps....Good Luck!